Work-reversing feed-table.



PATENTED JAN. 15, 1907. H. U. SHAW & V. OHARTENER.

WORK REVERSING FEED TABLE. .A'PPLIOATION FILED APR}. g. 1905.

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No. 841,459. PATENTED JAN; '15, 1907. H. 0. SHAW & v. GHARTENER.

WORK REVBRSING FEED TABLE.

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IN VENTO R5 M APPLICATION FILED APR. 8. 1905.

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UNITED STATES PATENT OFFTQE.

HENRY C. SHAW, OF GLENSHAW, AND VICTOR OHARTENER, OF

PITTSBURG, PENNSYLVANIA.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed April 8, 1905. Serial No. 254,578.

T0 at whom, it may concern:

Be it known that we, HENRY O. SHAW, residing at Glenshaw, and VICTORCHARTENER, residing at Pittsburg, in the county of Allegheny and Stateof Pennsylvania, citizens of the United States, have invented ordiscovered new and useful Improvements in Work- Beversing Feed-Tables,of which the following is a specification.

Our invention relates to rolling-mills, and more particularly to tableswhich receive the metal from one set of rolls and transfer it to anotherset.

By our invention the metal which is fed upon the table is fed therefromin a straightaway course through another set of rolls. It has beenascertained that sheet metal is much stronger and less liable to crackor break if it has been rolled partly with one end in advance and partlywith the other end in advance, because thereby the molecules which havebecome displaced or strained by one pass are more or less restored tonormal condition by a pass in the opposite direction. We do not reversethe direction of feed of the metal, but reverse the ends of the metalbetween passes. By so doing we do not need rolls more than two high orreversing mechanism for the rolls, as they always run in the samedirection.

Referring to the drawings, which form a part of this specification,Figure 1 is a side view oftwo stands of rolls with one form of ourimproved work-reversing feed-tables; Fig. 2, a plan view of Fig. 1,parts being broken away to show parts beneath; Fig. 3, a second formwhich our invention may assume, and Fig. 4 a partial end view showingthe stops and the means for withdrawing below the top of the table.

Referring at present to Figs. 1 and 2, A and B represent two sets ofrolls, in which 1 designates the horizontal rolls, and 2 the verticalrolls. 3 is a feeding-table for the set A, and 4 for the set B. Betweenthe two sets of rolls A and B we place our work-reversing table 0, whichis mounted on the post 5, to which is secured the bevel gear-wheel 6, inmesh with the bevel gear-wheel 7, driven by any suitable source ofpower. Centrally secured on the post 5 is the table-bed 8, havingantifriction-rollers therein slightly above the top of the bed and inline with the stationary ta les 3 and 4. Mounted in brackets 9, se-

. trac cured to one pair of the roll-housings, is the feed-roller 10,whose journals are movable up and down in the slots 11 (only one beingshown) in the brackets. On the necks or axles of this roller 10 are theends of the counterbalancing-levers 12, pivoted at 13 to the saidbrackets. The weights 14 on these levers may be adjusted and secured inany adjustment by the set-screws 15. 16 represents handles by which theroller may be raised, lowered, or held in any desired position and ismerely re resentative of any preferred mechanical e ement or combinationfor controlling the roller 10. The roller 10 is driven by the belt 17,running over one of the roll-necks or a pulley 18 thereon and the pulley19 on the shaft of the roller 10. Near each end of the bed 8 are one ormore stops 20, capable of being projected above the upper surface of thebed in the path of the work as it is fed from the set of rolls A. Eachstop is shown as consisting of a pin projected upwardly by the spring21; but it may be constructed in divers ways. The lower end of each stophas a wedge or cone-shaped end 22, tapering upwardly and near the set ofrolls A, and beneath the travel of the stops is a pair of tracks 23,between which the wedge or cone shaped end 22 travels. The tracks arelocated so that the larger end of the wedges or cones passes below themand so close together that the wedges or cones can not ass up betweenthem. The end of the 12s at which the wedges or cones enter is at ahigher level than the opposite end thereof, so that as the table reachesits feeding position the stops at the feeding-in end thereof, which isnext to the set of rolls A, will be lowered out of the path of the metalas it is dischlarged upon the table from the said set of r0 ls.

The operation is as follows: The work, which will be assumed to be packsof hot sheet metal, is fed through the set of rolls A and upon the table0. As the pack passes between the table and the feed-roller 10 thelatter will feed the pack out of the roll-pass and beyond theroll-housing and against the stops 20 at that side of the table nearestthe set of rolls B. The stops nearest the set of rolls A are all heldbelow the line of feed of the pack by the tracks 23. The roller 10 maybe held down on the pack by pressure on one of the handles 16 orotherwise, or the roller itself may be made to feed the pack. When thepack is stopped by the stops 20, the roller is raised and the tablerotated a half-revolution. The pack will lie'on the -depressed stops,while the previously-elevated stops Wlll be lowered by the tracks 23,ready for the feeding to the table of another pack. The roller 10 islowered against the pack, which is then fed into the set of rolls B, thestops which were beneath the pack rising as the pack passes from them intime to be engaged by the succeedng pack coming from the set of rolls A.

Referring now to Fig. 3, the table-bed 8 is the same as in Figs. 1 and2. The bed is supported on the plunger or post 24, operated by thehydraulic cylinder or other device. Splined on the plunger is the bevelgear-wheel 27, in mesh with the bevel-gear 28 on the shaft 29, connectedto any suitable source of power. 30 is a stationary feed-roller locatedabove the table. The table will have the stops 20, which operate asthose of Figs. 1 and 2. Each pack is fed upon the table preferably whenin its lowered position, and when the pack is out of the roll-pass thetable is raised by admitting pressure to the cylinder 25, and as soon asthe pack contacts with the roller 30 the latter feeds it against thestops 20. The table is then lowered and rotated a half-revolution andthen raised till the pack again is engaged by the roller 30, which feedsit into the pass of the succeeding set of rolls.

Many changes may be made in the elements and combinations shown anddescribed, while still retaining the spirit of our invention. As we haveillustrated but two forms of our invention, we do not thereby relinquishour right to protection on all other forms which fairly come within ourclaims when given a liberal interpretation. The set B of rolls may befollowed by another table C or other device.

Having described our invention, we claim 1. In a rolling-mill, two setsof rolls, a horizontal table between said sets of rolls, means forrotating said table in a horizontal lane, and means operativelyassociated wit but distinct from, the table for feeding the work fromone set of rolls before the rotation of the table, and from the tableafter its rotation into the other set.

2. In a rolling-mill, two sets of rolls, a horizontally-rotatable tablebetween said sets of rolls to receive the work from said rolls, stops atopposite ends of the table to limit the feed of the work thereon, andmeans for withdrawing the stop from the path of the work at thefeeding-in end thereof.

3. In a IOlllIlg-lllill, two sets of rolls, a horizontally-rotatabletable between said sets, a feeding-roller above the table, and means forbringing the work and the roller into and out of contact with eachother, so as to feed the work to the table from the first set of rollsand after rotation of the table, from the lat ter to the second set ofrolls.

4. In a rolling-mill, two sets of rolls, a horizontal feed-table betweensaid sets of rolls, and means for rotating said table in a horizontalplane, a stop at each end of the table adapted to be projected into thepath of an incoming piece of work, and means for withdrawing each stopso that when at the end of the table nearest the first set of rolls itwill be below the path of an incoming piece of work.

5. In a rolling-mill, two sets of rolls, a hori zontally-rotatable tablebetween. the same, stops at opposite ends of the table to limit the feedof the work thereon, and a cam engageable with the stop nearest thefeeding-in set of rolls to withdraw the stop from the path of the work.

Signed at Pittsburg, 9th day of March, 1905.

HENRY O. SHAW. VICTOR OHARTENER.

Witnesses:

F. N. BARBER, M. A. BUSHMAN.

Pennsylvania, this

